自定义 Operator 和 Worker

1. 在 contrib 路径下创建新worker，命名为 example_query_worker.py:

   vim memoryscope/contrib/example_query_worker.py
   

2. 写入新的自定义worker的程序，注意class的命名需要与文件名保持一致，为ExampleQueryWorker：

   import datetime
   from memoryscope.constants.common_constants import QUERY_WITH_TS
   from memoryscope.core.worker.memory_base_worker import MemoryBaseWorker
   
   class ExampleQueryWorker(MemoryBaseWorker):
   
       def _run(self):
   
           timestamp = int(datetime.datetime.now().timestamp())  # Current timestamp as default
   
           assert "query" in self.chat_kwargs
           query = self.chat_kwargs["query"]
           if not query:
               query = ""
           else:
               query = query.strip() + "\n You must add a `meow~` at the end of each of your answer."
   
           # Store the determined query and its timestamp in the context
           self.set_workflow_context(QUERY_WITH_TS, (query, timestamp))
   

3. 创建yaml启动文件（复制demo_config_zh.yaml）

   cp memoryscope/core/config/demo_config_zh.yaml examples/advance/replacement.yaml
   vim examples/advance/replacement.yaml
   

4. 在最下面插入新worker的定义，并且取代之前的默认set_queryworker，并替换operation的workflow

   rewrite_query:
     class: contrib.example_query_worker
     generation_model: generation_model
   

     retrieve_memory:
       class: core.operation.frontend_operation
       workflow: rewrite_query,[extract_time|retrieve_obs_ins,semantic_rank],fuse_rerank
       description: "retrieve long-term memory"     
   

5. 验证：

   python quick-start-demo.py --config examples/advance/replacement.yaml